Press-frame



L; C. MEYERS PRESS FRAME.

APPLICATION FILED MAR.8. I9I1I Patented July 29, 1919.

G tkocnmg THE COLUMBIA PLANOGRAPH CO., WASHINGTON, D. C.

LUTHER o. MEYERS, or BRIDGETON, NEW JERSEY.

PnEss-ritnivfin Specification of Letters Patent.

Patented uly 29, 1919,

Application filed. March 8, 1917. Serial no. 153,347.

To all whom it may concern Be it known that I, LUTHER C.- h/IEYERS, a citizen of the United States, and resident of Bridgeton, in the county of Cumberland, and in the State of New Jersey, have invented a certain new and useful Improvement in PressFrames, and do hereby declare that the following is a full, clear, and

happens, they are broken by accident, or.-

overload, the entire frame is ruined and must be replaced, and at considerable loss because the whole frame is quite'expensive. The object of my invention is to avoid the loss of the entire frame should breakage occur and to diminish the danger of breakage from overload, and my invention, broadly stated, consists in constructing the base, head and connecting member between base and head of separate castings and connecting the base and head members by tie rods which will take the tensile stresses which have to be borne by the frame of the type of presses in question.

In the accompanying drawings, I illustrate my invention as embodied both in cutting and punching presses, in which draw- 1ngs- Figure 1 is a side elevation of a cutting press frame embodying my invention;

Fig. 2 is a front elevation thereof;

Fig. 3 is a side elevation of a punching press embodying my invention;

Fig. 41 is a front elevation thereof.

Referring to the cutting press frame shown in Figs. 1 and 2, it will be seen that it is composed of a base member 10 having a plane, or fiat top, a head member which is composed of two similar elements 11, which have half boxes 12 to furnish bearings for the shaft which extends from side to side of the press, and a body member 13, which, at its lower end rests upon the base at the rear thereof, the two being secured together by bolts 14:, and at its upper end at each side has secured to it by bolts 15 the two elements forming the head member 11, the abutting faces of the various members being plane, or flat. The body member 13 inclines upward and forward so that as will be seen from F ig. 1 of thedrawings the ram reciprocating shaft overhangs the work on the bed of the press. At each side of the press, and extending continuously from the bottom of the base 10 upward through an opening in the same and upward through openings in the body 13 and the head elements 11, and emerging on the top of the latter, is a tie rod 16, which at each of its projecting ends has a nut 17 and said tie rods, as may be seen by reference to Fig. 1, extend at an incline upward and forward, their position being such that they are intermediate the fulcrum, or bearing point upon which the body member 13 under load tends to rock upon the base 10, and the line of thrust between the shaft supported by the head elements 11 and the base so that said tie rods are practically in the line of greatest tensile strains, and hence, take the tensile stress which the frame must bear. Due to the location and inclination of said tie rods, I secure the object of my invention, namely, a sectional, or built up frame, and one strengthened to support the tensile stress by a single pair of tie rods, one of which is at either side of the frame.

In Fi s. 3 and 4, I show my invention embodied in a punching press, the frame of which consists of a base member 10 a head member 11 and an intermediate body member 13, the head in this case consisting of a single member since the shaft extends from front to back of the press. There are two tie rods l6 which extend upward and forward through the frame sections in a similar position to those of the press shown in Figs. 1 and 2, and having nuts 17 on their protruding ends.

The ram slides in guides upon and at the front of the body member '13, or 13*.

If from accident, or overload any portion of the frame of the press breaks, the only part requiring to be replaced is the broken member, and thus there is no such serious loss as happens in the ordinary construction when the whole frame is cast in one piece.

Having thus described my invention what I claim is 1. A press frame for open throated presses comprising base, head and body members made of separate pieces, and a pair of tie rods, one at either side of the press, extending through and joining said pieces, said tie rods being situated in rear of the line of thrust between head and base members and forward of the fulcrum point upon Which said connected members tend to rock.

2. A press frame for open throatedipresses comprising base, head and body members made of separate pieces, and a pair of tie rods, one at either side of the press, extendingthrough and joining said pieces, said tie rods being situated in rear of the line of thrust between head and base members and 10 In testimony that I claim the foregoing 15 I have hereunto set my hand.

LUTHER O. MEYERS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

